新一代安眠药"忆梦返"的性质及检测

本文介绍了第三代安眠药亿梦返的化学结构和相关的药理性质，应用高效液相色谱和气-质联用方法定性和定量地分析了“亿梦返”的主要成分——佐匹克隆，并初步探讨其在人体内的致死量。     

On optimization of the maintenance of a register

Data processing nowadays represents a considerable investment and it is important to use computers as efficiently as possible. Criteria separating the best alternative from other ones would be very useful.In this article we have tried to find some criteria for the optimization of register maintenance applying the simplest methods of operations research. In particular the use of a change register has been investigated.     

Register Synthesis for Algebraic Feedback Shift Registers Based on Non-Primes

In this paper, we describe a solution to the register synthesis problem for a class of sequence generators known as algebraic feedback shift registers (AFSRs). These registers are based on the algebra of -adic numbers, where is an element in a ring R, and produce sequences of elements in R/(). We give several cases where the register synthesis problem can be solved by an efficient algorithm. Consequently, any keystreams over R/() used in stream ciphers must be unable to be generated by a small register in these classes. This paper extends the analyses of feedback with carry shift registers and algebraic feedback shift registers by Goresky, Klapper, and Xu.     

MADCE中的多Agent协作策略研究

描述Agent间的交互关系,提出了一种基于域的多Agent协作策略.该策略限定信息传播和共享的范围,实现Agent间负载的动态调整,它遵循就近原则,在局部范围内寻找最优的合作者,协作完成子计划,从而平衡负载,降低开销,扩大分布式计算环境的处理能力.为MADCE提供了一种有效的协作策略,并给出了算法描述、评价及例示.     

Characterization and optimization of SOA-based UNI recirculating shift register switching window

The operation of an all-optical recirculating shift register implemented with the semiconductor optical amplifier (SOA)-based ultrafast nonlinear interferometer (UNI) in a counter-propagating, inverting configuration is methodically studied and analyzed. This is achieved by applying an appropriate model for a SOA deployed as the nonlinear element in an interferometric switch driven by ultrafast and strong feedback optical pulses. By means of numerical simulation the impact of the critical functional parameters on the formation of the switching window is thoroughly investigated and assessed enabling to provide useful design rules for their proper selection and combination so as to optimize the specific metric and ensure high performance. The undertaken theoretical treatment can be extended for characterizing other more complex all-optical circuits and subsystems of enhanced functionality that employ this type of shift register as the key building module.     

关于某一类非奇反馈函数的自同构函数

本文定义了ｋ元ｄｅＢｒｕｉｊｎ－Ｇｏｏｄ图Ｇｎ的拟ｉ对偶同构及拟对偶自同构，并利用同构的性质，给出了一类ｋ元非奇反馈函数的自同构函数的表达式．     

Heterostructures with Built-in Electric Fields for Long-lasting Chemodynamic Therapy

Sustained signal activation by hydroxyl radicals (⋅OH) has great significance, especially for tumor treatment, but remains challenging. Here, a built-in electric field (BIEF)-driven strategy was proposed for sustainable generation of ⋅OH, thereby achieving long-lasting chemodynamic therapy (LCDT). As a proof of concept, a novel Janus-like Fe@Fe₃O₄−Cu₂O heterogeneous catalyst was designed and synthesized, in which the BIEF induced the transfer of electrons in the Fe core to the surface, reducing ≡Cu²⁺ to ≡Cu⁺, thus achieving continuous Fenton-like reactions and ⋅OH release for over 18 h, which is approximately 12 times longer than that of Fe₃O₄−Cu₂O and 72 times longer than that of Cu₂O nanoparticles. In vitro and in vivo antitumor results indicated that sustained ⋅OH levels led to persistent extracellular regulated protein kinases (ERK) signal activation and irreparable oxidative damage to tumor cells, which promoted irreversible tumor apoptosis. Importantly, this strategy provides ideas for developing long-acting nanoplatforms for various applications.     

Three phases of the minority game

We define three phases of the minority game according to the value ρ=2^M/N$\rho =2^M/N$, the ratio of the number of entries in a strategy to the number of agents. The time sequence of the population in one room has distinct feature in different phase. It shows quasi-periodic structure in the first phase where ρ<_ρc1$\rho <{\rho }_{c_1}$. In the second phase, _ρc1<ρ<_ρc2${\rho }_{c_1}<\rho <{\rho }_{c_2}$, agents coordinate better and better as ρ   gets larger. In the third phase, ρ$\rho$>_ρc2${\rho }_{c_2}$, the system is able to reach its best performance in reducing the population variance. The crucial factor, which hinders the system to reach its best performance in the first and second phases, is the number of agents who switch strategy at the same time. When ρ<_ρc2$\rho <{\rho }_{c_2}$, the constraint that bound 2^M predictions in a strategy is small, so that too many agents will switch to a better strategy simultaneously. As a result, they form a majority group and are more likely to lose. We give analytical approximate formulas for the population variance in the first and third phases. We have also determined the phase-changing point _ρc1${\rho }_{c_1}$.     

以褐煤为原料制备水溶性沥青

以褐煤为原料、亚硫酸铵为磺化试剂,制备水溶性沥青.实验探索了反应时间、反应温度、亚硫酸铵用量、甲醛用量、氨水浓度对水溶性沥青产率及其性能的影响.结果表明：3g原料沥青、1g亚硫酸铵、1mL甲醛、30mL 40％氨水,反应时间1.5h,反应温度75℃条件下制备的沥青水溶物为59％.